// Copyright (C) Kumo inc. and its affiliates.
// Author: Jeff.li lijippy@163.com
// All rights reserved.
// This program is free software: you can redistribute it and/or modify
// it under the terms of the GNU Affero General Public License as published
// by the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
// GNU Affero General Public License for more details.
//
// You should have received a copy of the GNU Affero General Public License
// along with this program.  If not, see <https://www.gnu.org/licenses/>.
//


#pragma once

#include <pollux/dwio/common/statistics.h>
#include <pollux/dwio/dwrf/common/common.h>
#include <pollux/dwio/dwrf/common/file_metadata.h>
#include <pollux/dwio/dwrf/common/wrap/dwrf-proto-wrapper.h>

namespace kumo::pollux::dwrf {

/**
 * StatsContext contains fields required to compute statistics
 */
struct StatsContext : public dwio::common::StatsContext {
  const std::string writerName;
  WriterVersion writerVersion;

  StatsContext(const std::string& name, WriterVersion version)
      : writerName(name), writerVersion{version} {}

  explicit StatsContext(WriterVersion version)
      : writerName(""), writerVersion{version} {}

  ~StatsContext() override = default;
};

std::unique_ptr<dwio::common::ColumnStatistics> buildColumnStatisticsFromProto(
    const ColumnStatisticsWrapper& stats,
    const StatsContext& statsContext);

} // namespace kumo::pollux::dwrf
